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Yesterday was Saturday. The weather was cloudy. I visited my grandma. But she was not at home. She went to the market to buy some food. My grandma came back home an hour later. She made a very delicious lunch for me. I helped her wash the dishes. I helped her water the flowers. I was very happy yesterday at my grandma’s home.
1．It was cloudy and windy on Saturday. （__________）2．I visited my grandma yesterday. （__________）
3．Grandma went to the shopping centre to buy some clothes. （__________）
4．Grandma cooked delicious lunch for me. （__________）
5．I helped Grandma wash the dishes and water the flowers. （__________）
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
